Cited by 5Neurobiology and Insect Physiology ResearchNeuroscience and Neuropharmacology ResearchTactile and Sensory Interactions

Somatotopic organization among parallel sensory pathways that promote a grooming sequence in Drosophila

Open access
Eichler, Katharina, Hampel, Stefanie, Alejandro-García, Adrián, Calle-Schuler, Steven A, Santana-Cruz, Alexis, Kmecova, Lucia, Blagburn, Jonathan M, Hoopfer, Eric D +1 more·2024·eLife

Published version of a preprint

Abstract

Mechanosensory neurons located across the body surface respond to tactile stimuli and elicit diverse behavioral responses, from relatively simple stimulus location-aimed movements to complex movement sequences. How mechanosensory neurons and their postsynaptic circuits influence such diverse behaviors remains unclear. We previously discovered that Drosophila perform a body location-prioritized grooming sequence when mechanosensory neurons at different locations on the head and body are simultaneously stimulated by dust (Hampel et al., 2017; Seeds et al., 2014). Here, we identify nearly all mechanosensory neurons on the Drosophila head that individually elicit aimed grooming of specific head locations, while collectively eliciting a whole head grooming sequence. Different tracing methods were used to reconstruct the projections of these neurons from different locations on the head to their distinct arborizations in the brain. This provides the first synaptic resolution somatotopic map of a head, and defines the parallel-projecting mechanosensory pathways that elicit head grooming.

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Crossref · 10.7554/elife.87602.3

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  • Schlegel et al. and other community members were able to determine the sensory organs corresponding to the 5,375 non-visual sensory neurons on the basis of morphology and nerve assignments.

    “Although afferents are truncated in our reconstruction, Schlegel et al.12 and other community members35,57 were able to determine the sensory organs corresponding to the 5,375 non-visual sensory neurons (Fig. 2e,f) on the basis of morphology and nerve assignments.”

    From Neuronal wiring diagram of an adult brain (2024) · cites this paper as [35]

  • FlyWire community members have shared 133,700 annotations of 114,209 neurons, including comprehensive cell typing in the optic lobe, the majority of sexually dimorphic neurons and sensory neurons, and a diversity of cell types throughout the brain, including the SEZ.

    “FlyWire community members, many of whom are experts in diverse regions of the fly brain, have shared 133,700 annotations of 114,209 neurons (Supplementary Fig. 9), including comprehensive cell typing in the optic lobe11, the majority of sexually dimorphic neurons and sensory neurons35, as well as a diversity of cell types throughout the brain, including the SEZ (Fig. 2f).”

    From Neuronal wiring diagram of an adult brain (2024) · cites this paper as [35]

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Authors
Eichler, K., Hampel, S., Alejandro-García, A., Calle-Schuler, S. A., Santana-Cruz, A., Kmecova, L., Blagburn, J. M., Hoopfer, E. D., & Seeds, A. M.
Affiliations
  • University of Puerto Rico, Medical Sciences Campus (PR)
  • Institute of Neurobiology, University of Puerto Rico-Medical Sciences Campus
  • Carleton College (US)
Venue
eLife
Published
2024-04-18
Volume
12
ISSN
2050-084X (ISSN-L)
OpenAlex
W4394931604
Cited by
5
References
114
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1
FWCI
0.70
Type
journal article
Language
en
Open access
Locations
eLife (publishedVersion, cc-by)
Funders
  • BRAIN Initiative (1RF1NS121911-01)
  • Puerto Rico Science, Technology and Research Trust (2020-00195)
  • Whitehall Foundation (2017-12-69)
  • National Institute on Minority Health and Health Disparities (MD007600)
  • National Institute of General Medical Sciences (R25GM061838, 5R25GM061151, GM103642)
  • National Science Foundation (HRD-1736019)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
somatotopic map, mechanosensory neurons, grooming, Drosophila, parallel sensory pathways, arborization, tactile stimuli, body location

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